Home / 15,431.71-23,147.34-3,745.03

Finding the Fourth Proportional to 15,431.71, 23,147.34 and 3,745.03

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Solution

The fourth proportional to 15,431.71, 23,147.34 and 3,745.03 is: 5,617.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,431.71 : 23,147.34 = 3,745.03 : x
  2. Step 2: Convert to fraction form
    15,431.71/23,147.34 = 3,745.03/x
  3. Step 3: Cross multiply
    15,431.71x = 23,147.34 × 3,745.03
  4. Step 4: Simplify right side
    15,431.71x = 86,687,482.72
  5. Step 5: Solve for x
    x = 86,687,482.72/15,431.71
  6. Step 6: Final answer
    x = 5,617.49

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.